Step-Ladder Mode - Datalogic DS1500 Reference Manual

READING FEATURES
3.2.1

Step-Ladder Mode

If scanning is perpendicular to the code motion direction (Figure 23), the number of
effective scans performed by the reader is given by the following formula:
SN = [(LH/LS) * SS] – 2
DS1500
For example, the DS1500 (1200 scans/sec.) for a 20 mm high code moving at 1200
mm/s performs:
Where:
Figure 23 - "Step-Ladder" Scanning Mode
[(20/1200) * 1200] - 2 = 18 effective scans.
SN = number of effective scans
LH = label height (in mm)
LS = label movement speed
in (mm/s)
SS = number of scans per second
Direction of code
movement at LS speed
LH
Laser beam
3
31